SI8935D-AS4

ADCs/DACs - Special Purpose Overview

The Skyworks SI8935D-AS4 is an automotive-grade, galvanically isolated delta-sigma modulator designed for voltage sensing applications. It features a single-ended input range of 0 to 2.5 V and utilizes an external clock signal up to 25 MHz on the ACLK pin. The device provides high common-mode transient immunity of 75 kV/µs and supports up to 5.0 kVRMS isolation per UL 1577. Packaged in a wide body SSOP-8, it operates within a temperature range of -40 °C to +125 °C.

ADCs/DACs - Special Purpose Feature Summary

• Automotive-grade qualification with AEC-Q100 standards
• External clock input supporting frequencies up to 25 MHz
• High common-mode transient immunity of 75 kV/µs
• Galvanic isolation rated at 5.0 kVRMS

ADCs/DACs - Special Purpose Applications

• Automotive on-board chargers and battery management systems
• Industrial and HEV inverters
• Isolated switch mode power supplies and UPS
• Motor control and drives

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering suffix matches the required wide body package and insulation rating. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to soldering assembly.

ADCs/DACs - Special Purpose Selection Notes

Select this model when an external clock source is available and higher frequency modulation up to 25 MHz is required. Compare against Si8936 and Si8937 variants if internal clock generation is preferred instead. Ensure the system controller can process the 1-bit delta-sigma output stream effectively.

ADCs/DACs - Special Purpose Part Context

This component belongs to the Si8935/36/37 family of isolated delta-sigma modulators. The 'D' suffix indicates a 5.0 kVRMS insulation rating, while 'AS4' denotes the wide body SSOP-8 package configuration. It serves as the externally clocked counterpart to internally clocked variants within the same product line.

ADCs/DACs - Special Purpose Replacement Considerations

Si8935B-AS4 offers identical functionality with a lower 2.5 kVRMS insulation rating. Si8935D-IS4 provides the same electrical performance but utilizes a narrow body SOIC-8 package instead of the wide body variant.